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Used in this context, 'R' probably stands stands for 'red'. This is one of three colours used to identify the lines(not phases) of a three-phase system. The other two lines are coloured according to the standards used in your country. In the UK, for example, the colours are red, yellow, and blue -which also represent the positive phase sequence of the three-phase supply. Other methods of identifying lines include letters, e.g. 'A-B-C', numbers, e.g. '1-2-3', combinations of the two, e.g. 'L1-L2-L3', or other colours, e.g. 'brown-black-grey'.
'R' could also represent one of the letters, 'R-S-T', which has been used in Germany to represent the three lines of a three-phase system.
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Why is the R-C oscillator also called a phase shift oscillator?
The R-C oscillator is also called a phase shift oscillator because the R-C filter creates a phase shift from input to output. The feedback portion of the oscillator (an amplifier) then serves to pump energy back into the filter.
How a 3 phase generator work?
For information about three phase electrical services see the answers to the Related Questions shown below.
What is a RC phase shifter ciRCuit?
R resistor C capacitance will shift phase since the capacitor will take time to charge.
What is the difference between positive sequence and negative sequence arrangement?
The order in which the voltage of the coil reaches to the maximum value is called the Phase Sequence.POSITIVE PHASE SEQUENCE: If the coil is rotated in anticlockwise direction, the phase sequence will be Positive Phase Sequence, i.e., R-Y-B or A-B-C.NEGATIVE PHASE SEQUENCE: If the coil is rotated in clockwise direction, the phase sequence is called Negative Phase Sequence, i.e., R-B-Y or A-C-B.NOTE: Phase Sequence is of great importance in parallel operation of three phase transformers and alternators.
What is phase angle between line and phase currents in delta?
A delta connection should cause a 30 degree phase shift. It is necessary to know the configuration to tell whether this is +30 or -30 degrees.Also, if you invert the connection, you can end up with [-30 + 180] 150 or [30 + 180] 210 degree phase shifting.I've seen one transformer that had a delta connection that was phase shifted 150 degrees, but this is definitely NOT the norm.CommentSince the current is determined by the load, the answer to this question is that it depends upona. the nature of the load (resistive, R-L, R-C, R-L-C), andb. whether the load is balanced or unbalanced.In other words, it depends....
What degree is xenon at normal phase?
The answer depends on what is meant by "normal phase".
What is meant by the moons phase?
shoearah
What is meant by zero phase frequency?
The zero phase frequency is the frequency at which the phase of the input signal and the output signal match.
Why Y phase is high in YNyn0 when doing magnetic balance test?
because y phase is y phase ...it is not b phase or R phase so it is high
What is R as a fraction?
The answer depends entire on what R is meant to be.
What is meant by electrical phase?
according to my research a phase in electrical engineering means a single line or a single way of transmission
What is meant by unity power factor?
when voltage n current r in same phase(it happens when load is resistive) ,the power factor which denoted by "fi" is 1 .this condition is known as unity power factor
How do you reverse a direction of a slip ring motor?
It is very simple. Just interchange any two phase wires. i.e. Y and B ( or ) R and B ( or ) R and Y for example Stop the supply. keep R phase wire as it is and disconnect B phase wire and Y phase wire. Connect B phase wire to the Y phase motor stud and Y phase wire to the B phase motor stud. Now give the supply, now motor revolves in opposite direction to the earlier.
What is meant by phase of the moon?
Different ways of seeing the moon from the earth
Double-peak of two-phase R- wave?
Double peak on r wave
What is meant by medium?
the component in which the dispersed phase is suspended is called dispersing medium
Why is the R-C oscillator also called a phase shift oscillator?
The R-C oscillator is also called a phase shift oscillator because the R-C filter creates a phase shift from input to output. The feedback portion of the oscillator (an amplifier) then serves to pump energy back into the filter.
